Rock Identifier
Citrine (Silicon Dioxide (Quartz variety), SiO2) — mineral
mineral

Citrine

Silicon Dioxide (Quartz variety), SiO2

AI-generated identification · may be incorrect

Hardness of 7 on the Mohs scale, pale yellow to brownish-orange color, vitreous luster, trigonal crystal system, and conchoidal fracture with no cleavage.

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Physical properties

Hardness of 7 on the Mohs scale, pale yellow to brownish-orange color, vitreous luster, trigonal crystal system, and conchoidal fracture with no cleavage.

Formation & geological history

Formed through hydrothermal processes, igneous pegmatites, or metamorphism, often resulting from the natural or heat-treated irradiation of iron-bearing quartz.

Uses & applications

Widely used as a popular gemstone in jewelry, decorative carvings, and as a collector mineral.

Geological facts

Natural citrine is relatively rare; most commercial citrine is actually heat-treated amethyst or smoky quartz.

Field identification & locations

Identified by its distinct yellow color, high hardness, and lack of cleavage. Found globally, with significant deposits in Brazil, Madagascar, and Russia.